Colon behaviour about unicode-math HOT 2 CLOSED

From Ross Moore on [unimath]:

It is not the intended behaviour. 0x003A should do the same in mathematics, whether unicode math is loaded or not. IMHO, this should be relation spacing, not punctuation. It should be co[d]ed this way within the XeTeX format.

Traditionally \colon has been used for punctuation spacing. This should not change. The Unicode character at 0x2236 is called "ratio", as in "odds of 2:1 against". What is a good macro name? How about \unicoderatio?

In practice one might use
\let\odds\unicoderatio % in the preamble
"odds of $2\odds 1$ against"
or
\let\suchthat\unicoderatio % in the preamble
consider the subset $S = { x \in X \suchthat 1 ≤ x ≤ 3 }$.

I think it is better to use a macro like \unicoderatio that should remain unique, rather than directly define \odds or \suchthat, which risk a name clash, and which bias towards one use of the symbol when several usages are quite common.

from unicode-math.

fix colon behaviour

closed by 31a6d6b

from unicode-math.